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What are asteroids mostly made of?
Rock
Where is the asteroid belt located?
Between Mars and Jupiter
Why does Jupiter have stronger gravity than Mercury?
Jupiter has a greater mass
What keeps planets orbiting the Sun?
Gravity
What happens to gravitational pull if the distance between two objects doubles?
It decreases
What's the name of the Supercontinent that Alfred Wegener put together?
Pangaea
What is one way fossils provide evidence for Continental Drift Theory?
Fossils of the same species are found on continents now far apart
What drives the movement of tectonic plates?
Convection currents in the mantle
Evidence of __________ spreading shows that new crust is forming and plates are moving apart.
Seafloor
What can scientists learn from fossils of tropical plants found in Antarctica?
Antarctica was once a warm continent
Why don’t asteroids fall into the Sun?
Gravity keeps them in orbit
If a fossil is found in the topmost layer of rock, what does that indicate about its age?
It is the youngest fossil in the rock formation
What would happen if two objects were to be further apart? What would happen to their gravitational pull?
The force of gravity weakens with increased distance
What would happen to the gravitational strength as mass increases?
Gravitational strength increases
What keeps satellites in orbit around Earth?
Gravity
Why does an object weigh less on the Moon than on Earth?
The Earth has more mass than the moon
